1. I was looking in the window of a popular camera shop here in the UK and saw a triangle of brand new boxed 5R + PZ kits priced at, wait for it, £349.95. I bought the very same kit 6 months ago from John Lewis for £600. It then fell to £500. (And I got the difference back.) They are obviously not selling well, even if the 5T has replaced the 5R.

I'm not sure you can draw that conclusion from the pricing. The NEX-5R is now an obsolete model and so Sony will be offering job lots to the resellers at super-low prices just to get rid of them

I'm not even sure he is correct in asuming this pricing developement. What I see from a price trackking site here is a rather oridnary slide from introduction to end of mid life. Now the model is EOL, you see some shops [not Sony itself] discounting, which suggests that Sony hasn't got much undelivered stock. At the moment you see the average price even going up as only shops that aren't paying much attentio still have it

This is one of the really strange aspects to the NEX-5T release. It must have cost Sony a fortune in changing documentation, package and applying for new certification/approvals for the 5T, as well as stock clearance of unsold 5R models, when basically there were seemingly no real changes to the new camera!

As the model change is limited and aparently well managed those things need not be very costly. The certification is essentially only in the one item added.